Beam for TV without using Sonos app

My Beam will not turn on unless the Sonos app is used. I have tried waiting over a minute after the turned on, restarting the TV, using the remote to change the volume and re-setting up the Beam, all without success. What other options do I have to get the Beam to turn on when the TV is turned on without using the app? My children do not have access to the app so a workaround is needed. Thanks